package com.day08.ex01;

public class StringTest04 {
    public static void main(String[] args) {
        int[] arr={1,2,3};
        String s=arrayToString(arr);
        System.out.println("s:"+s);
    }
    public static String arrayToString(int[] arr){
        String s="";
        s+="[";
        for(int i=0;i<arr.length;i++){

            if(i<arr.length-1){
                s+=arr[i];

            }else {
                s+=arr[i];
                s+=",";
            }
        }
        s+="]";
        return s;
    }
}
